GB/T 12459  异径四通 DN 300×300×150-Ⅱ-3CRR0i

DN 300×300×150-Ⅱ-3 CRR0i

wn50-2500 rf s=10mmA5

WN 200(B)-16 RF N=295 A=268 B=211 H=64 C=30 f1=3

wn300-1500 rj sch1amRF RJ1r

BL 4"-300 RF

WN 100(B)-100 RF S=5

DN1000-PN6 PL FF I

BL20-300 RF

BL 2 1/2"-600 RF

BL 10"-1500 RFF �M RJ R